1 files changed, 1 insertions, 1 deletions
diff --git a/components/script/dom/webidls/HTMLTableCaptionElement.webidl b/components/script/dom/webidls/HTMLTableCaptionElement.webidl
index 69abba210a2..fbb0dd12071 100644
--- a/components/script/dom/webidls/HTMLTableCaptionElement.webidl
+++ b/components/script/dom/webidls/HTMLTableCaptionElement.webidl
@@ -3,7 +3,7 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 // https://html.spec.whatwg.org/multipage/#htmltablecaptionelement
-[HTMLConstructor]
+[Exposed=Window, HTMLConstructor]
 interface HTMLTableCaptionElement : HTMLElement {
   // also has obsolete members
 };